Efficient recovery device for coking crude benzol

Abstract

The utility model relates to the technical field of coking crude benzol recovery, in particular to an efficient recovery device for coking crude benzol. According to the technical scheme, the recycling box comprises a recycling box body, a temperature sensor and a heat exchange pipe, a supporting pipe is fixedly embedded into the recycling box body, the heat exchange pipe sleeves the outer surface of the supporting pipe, a fixed pipe is fixed to the top end in the recycling box body, a spray head communicates with the lower surface of the fixed pipe, and a feeding pipe communicates with the outer end face of one side of the fixed pipe; the outer end face of one side of the heat exchange pipe communicates with a water inlet pipe, the outer surface of the water inlet pipe is in threaded connection with a water inlet valve, the outer end face of one side of the heat exchange pipe communicates with a water outlet pipe, and the outer surface of the water outlet pipe is in threaded connection with a water outlet valve. A temperature sensor is installed on the inner wall of the recycling box body, a probe of the temperature sensor communicates with the supporting pipe, and a controller is installed on the inner wall of the recycling box body. The coking crude benzene recovery device can efficiently recover coking crude benzene.

Description

Technical Field

[0001] The utility model relates to the technical field of coking crude benzene, in particular to a coking crude benzene high-efficiency recovery device. Background Art

[0002] The production scale of the coking unit of Anhui Shoukuang Dachang Metal Materials Co., Ltd. is designed based on 2×65 holes and 5.5m ramming coke ovens, with an annual output of 1.3 million tons of dry coke. The output of by-product crude benzene is about 130,000 tons. Coking crude benzene requires the use of efficient recovery devices.

[0003] During the operation of chemical product recovery, the benzene content of coal gas after washing is sometimes as high as 5mg / m 3 The gas volume per hour is about 70,000 cubic meters, and the loss of crude benzene is about 0.35 tons per day, and about 127 tons per year, so a more efficient recovery device is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a coking crude benzene high-efficiency recovery device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency recovery device for coking crude benzene, comprising a recovery box body, a water inlet pipe, a temperature sensor and a heat exchange pipe, a support pipe is embedded and fixed inside the recovery box body, and a heat exchange pipe is sleeved on the outer surface of the support pipe, a fixed pipe is fixed on the top of the inner part of the recovery box body, and a nozzle is connected to the lower surface of the fixed pipe, the nozzle passes through the heat exchange pipe and is connected to the support pipe, an outer end surface of one side of the heat exchange pipe is connected to the water inlet pipe, and a water inlet valve is threadedly connected to the outer surface of the water inlet pipe, a temperature sensor is installed on the inner wall of the recovery box body, and a probe of the temperature sensor passes through the heat exchange pipe and is connected to the support pipe, and a controller is installed on the inner wall of the recovery box body.

[0006] When using a coking crude benzene efficient recovery device in the technical solution, open the air inlet valve, send the coal gas into the recovery box body through the air inlet pipe, open the feed valve, send the oil into the fixed pipe through the feed pipe, and then the oil is sprayed out through the nozzle, and the oil is sprayed into the support pipe. The oil and the coal gas contact and mix inside the support pipe, which is convenient for recovering the crude benzene. The support pipe adopts an "S" shape design, which can increase the contact area between the washing oil and the coal gas, improve the crude benzene recovery rate, and facilitate the efficient recovery of coking crude benzene.

[0007] Preferably, the outer end surface of one side of the fixed pipe is connected with a feed pipe, and the outer surface of the feed pipe is threadedly connected with a feed valve. By arranging the feed pipe on one side of the fixed pipe, feeding is convenient.

[0008] Preferably, the upper surface of the support tube is connected to an exhaust pipe, and the outer surface of the exhaust pipe is threadedly connected to an exhaust valve. By arranging the exhaust pipe on the upper surface of the support tube, it is convenient to discharge the gas.

[0009] Preferably, an air inlet pipe is connected to an outer end surface of one side of the support pipe, and an air inlet valve is threadedly connected to the outer surface of the air inlet pipe. By arranging the air inlet pipe on one side of the support pipe, air intake is facilitated.

[0010] Preferably, a workbench is fixed on the lower surface of the recycling box body, and supporting legs are fixed on the lower surface of the workbench. By arranging the workbench and supporting legs on the lower surface of the recycling box body, it is convenient to support the recycling box body.

[0011] Preferably, one side of the outer end surface of the heat exchange tube is connected to a water outlet pipe, and the outer surface of the water outlet pipe is threadedly connected to a water outlet valve. By arranging the water outlet pipe on one side of the heat exchange tube, water outlet is convenient.

[0012] Preferably, the signal transmitting end of the temperature sensor is electrically connected to the signal receiving end of the controller, and the signal transmitting end of the controller is electrically connected to the signal receiving ends of the water inlet valve and the water outlet valve. The electrical connection facilitates the control of the water inlet valve and the water outlet valve according to the result of the temperature sensor.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model achieves the effect of facilitating efficient recovery of coking crude benzene by arranging a support tube, a heat exchange tube and a feed tube. The air inlet valve is opened, and the coal gas is sent into the interior of the recovery box body through the air inlet pipe. The feed valve is opened, and the oil is sent into the interior of the fixed tube through the feed pipe. The oil is then sprayed out through the nozzle and sprayed into the interior of the support tube. The oil and the coal gas are contacted and mixed inside the support tube, which is convenient for recovering the crude benzene. The support tube adopts an "S"-shaped design, which can increase the contact area between the wash oil and the coal gas, improve the crude benzene recovery rate, and facilitate efficient recovery of coking crude benzene.

[0015] 2. The utility model achieves the effect of easy temperature control by arranging heat exchange tubes, water inlet pipes and temperature sensors. The water inlet pipe and the water outlet pipe are connected to the external water tank, the water inlet valve is opened, and low-temperature water enters the heat exchange tube through the water inlet pipe. The low-temperature water flows inside the heat exchange tube to exchange heat and cool down. The water outlet valve is opened, and the low-temperature water after heat exchange returns to the water tank through the water outlet pipe for cooling again. The temperature sensor can detect the temperature inside the support tube. When the temperature reaches the set value, the temperature sensor transmits a signal to the controller, and the controller transmits a signal to the water inlet valve and the water outlet valve, and the controller closes the water inlet valve and the water outlet valve. When the temperature is higher than the set value, the temperature sensor transmits a signal to the controller, and the controller transmits a signal to the water inlet valve and the water outlet valve, and the controller opens the water inlet valve and the water outlet valve for cooling again, which is convenient for controlling the temperature and can ensure the recovery rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 It is a partial enlarged structural schematic diagram of the fixed pipe of the utility model;

[0018] Figure 3 It is a half-section structural schematic diagram of the recycling box body of the utility model;

[0019] Figure 4 It is a schematic diagram of the electrical structure of the utility model.

[0020] In the figure: 1. feed pipe; 2. feed valve; 3. recovery box body; 4. exhaust valve; 5. exhaust pipe; 6. water inlet valve; 7. water inlet pipe; 8. nozzle; 9. water outlet valve; 10. water outlet pipe; 11. controller; 12. temperature sensor; 13. air inlet pipe; 14. air inlet valve; 15. workbench; 16. support leg; 17. fixing pipe; 18. support pipe; 19. heat exchange pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figures 1 to 4 The utility model provides an embodiment: a coking crude benzene efficient recovery device, comprising a recovery box body 3, a water inlet pipe 7, a temperature sensor 12 and a heat exchange pipe 19, a workbench 15 is fixed to the lower surface of the recovery box body 3, and a support leg 16 is fixed to the lower surface of the workbench 15, a support pipe 18 is embedded and fixed inside the recovery box body 3, and the outer surface of the support pipe 18 is sleeved with the heat exchange pipe 19, the upper surface of the support pipe 18 is connected with the exhaust pipe 5, and the outer surface of the exhaust pipe 5 is threadedly connected with the exhaust valve 4, one side outer end surface of the support pipe 18 is connected with the intake pipe 13, and the outer surface of the intake pipe 13 is threadedly connected with the intake valve 14, a fixed pipe 17 is fixed to the top of the inner part of the recovery box body 3, and the lower surface of the fixed pipe 17 is connected with a nozzle 8, one side outer end surface of the fixed pipe 17 is connected with the feed pipe 1, and the outer surface of the feed pipe 1 is threadedly connected with the feed valve 2, and the nozzle 8 passes through the heat exchange pipe 19 and is connected with the support pipe 18.

[0024] Of course, as is well known to those skilled in the art, the water inlet valve 6, nozzle 8, water outlet valve 9, controller 11, temperature sensor 12, fixed pipe 17 and support pipe 18 of the utility model also need to be provided with a power device to enable them to work normally, and as is well known to those skilled in the art, the provision of the power is commonplace, and they all belong to conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0025] A highly efficient recovery device for crude benzene from coking is disclosed based on Example 1. The air inlet valve 14 is opened, and the coal gas is sent into the interior of the recovery box body 3 through the air inlet pipe 13. The feed valve 2 is opened, and the oil is sent into the interior of the fixed pipe 17 through the feed pipe 1. The oil is then sprayed out through the nozzle 8 and sprayed into the interior of the support pipe 18. The oil and the coal gas are contacted and mixed inside the support pipe 18, which is convenient for recovering the crude benzene. The support pipe 18 adopts an "S"-shaped design, which can increase the contact area between the wash oil and the coal gas, improve the crude benzene recovery rate, and facilitate the efficient recovery of coking crude benzene.

[0026] Embodiment 2

[0027] like Figure 1-Figure 4 As shown, the utility model proposes a high-efficiency recovery device for coking crude benzene. Compared with the first embodiment, the present embodiment also includes a recovery box body 3, a water inlet pipe 7, a temperature sensor 12 and a heat exchange tube 19. The outer end surface of one side of the heat exchange tube 19 is connected with the water inlet pipe 7, and the outer surface of the water inlet pipe 7 is threadedly connected with the water inlet valve 6. The outer end surface of one side of the heat exchange tube 19 is connected with the water outlet pipe 10, and the outer surface of the water outlet pipe 10 is threadedly connected with the water outlet valve 9. The inner wall of the recovery box body 3 is installed with a temperature sensor 12, and the probe of the temperature sensor 12 passes through the heat exchange tube 19 and is connected with the support tube 18. The inner wall of the recovery box body 3 is installed with a controller 11, and the signal transmitting end of the temperature sensor 12 is electrically connected to the signal receiving end of the controller 11, and the signal transmitting end of the controller 11 is electrically connected to the signal receiving ends of the water inlet valve 6 and the water outlet valve 9.

[0028] In this embodiment, the water inlet pipe 7 and the water outlet pipe 10 are connected to the external water tank, the water inlet valve 6 is opened, and the low-temperature water enters the heat exchange tube 19 through the water inlet pipe 7. The low-temperature water flows inside the heat exchange tube 19 to exchange heat and cool down. The water outlet valve 9 is opened, and the low-temperature water after heat exchange returns to the water tank through the water outlet pipe 10 to be used for cooling again. The temperature sensor 12 can detect the temperature inside the support tube 18. When the temperature reaches the set value, the temperature sensor 12 transmits a signal to the controller 11, and the controller 11 transmits a signal to the water inlet valve 6 and the water outlet valve 9. The controller 11 closes the water inlet valve 6 and the water outlet valve 9. When the temperature is higher than the set value, the temperature sensor 12 transmits a signal to the controller 11, and the controller 11 transmits a signal to the water inlet valve 6 and the water outlet valve 9. The controller 11 opens the water inlet valve 6 and the water outlet valve 9 to cool again, which is convenient for controlling the temperature and can ensure the recovery rate.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A coking crude benzene high-efficiency recovery device, comprising a recovery box body (3), a water inlet pipe (7), a temperature sensor (12) and a heat exchange pipe (19), characterized in that: A support tube (18) is embedded and fixed inside the recovery box body (3), and a heat exchange tube (19) is sleeved on the outer surface of the support tube (18). A fixed tube (17) is fixed at the top of the inside of the recovery box body (3), and a nozzle (8) is connected to the lower surface of the fixed tube (17), and the nozzle (8) passes through the heat exchange tube (19) and is connected to the support tube (18). One side outer end surface of the heat exchange tube (19) is connected to a water inlet pipe (7), and the outer surface of the water inlet pipe (7) is threadedly connected to a water inlet valve (6). A temperature sensor (12) is installed on the inner wall of the recovery box body (3), and a probe of the temperature sensor (12) passes through the heat exchange tube (19) and is connected to the support tube (18). A controller (11) is installed on the inner wall of the recovery box body (3).

2. A coking crude benzene efficient recovery device according to claim 1, characterized in that: One side outer end surface of the fixed pipe (17) is connected to a feed pipe (1), and the outer surface of the feed pipe (1) is threadedly connected to a feed valve (2).

3. A coking crude benzene efficient recovery device according to claim 1, characterized in that: The upper surface of the support pipe (18) is connected to an exhaust pipe (5), and the outer surface of the exhaust pipe (5) is threadedly connected to an exhaust valve (4).

4. A coking crude benzene efficient recovery device according to claim 1, characterized in that: One side outer end surface of the support tube (18) is connected to an air intake pipe (13), and the outer surface of the air intake pipe (13) is threadedly connected to an air intake valve (14).

5. A coking crude benzene efficient recovery device according to claim 1, characterized in that: A workbench (15) is fixed on the lower surface of the recovery box body (3), and a supporting leg (16) is fixed on the lower surface of the workbench (15).

6. A coking crude benzene efficient recovery device according to claim 1, characterized in that: One outer end surface of the heat exchange tube (19) is connected to a water outlet pipe (10), and the outer surface of the water outlet pipe (10) is threadedly connected to a water outlet valve (9).

7. The device for efficiently recovering crude benzene from coking according to claim 1, characterized in that: The signal transmitting end of the temperature sensor (12) is electrically connected to the signal receiving end of the controller (11), and the signal transmitting end of the controller (11) is electrically connected to the signal receiving ends of the water inlet valve (6) and the water outlet valve (9).

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